英文關鍵字
cnc
machine
laser
cutting
plasma
metal
cut
industrial
equipment
tool
steel
robot
working
computer
metalwork
melting
welding
mechanical
arm
production
line
automated
factory
robotic
machinery
industry
work
manufacturing
business
manufacture
process
modern
technology
workpiece
accuracy
automate
operation
product
metalworking
conveyor
processing
sparkle
sheet
construction
workshop
background
closeup
manufactured
indoors
plant